Mieszko III the Old Denar

The denar of Mieszko III stands out for bearing his name on the obverse, a bold move in 12th-century Poland where most coins hid behind generic symbols.

This silver piece, minted during his rule in Greater Poland, likely came from local mines, reflecting the Piast dynasty's efforts to assert control amid feudal squabbles. We know it circulated as everyday currency, from markets to monasteries, but exact designs varied—some show a simple cross, others faint inscriptions that numismatists still puzzle over.

Production details are murky; records from that era burned in later fires, so we're left guessing on quantities. As for myths, like the one about these coins funding crusades, that's just romantic nonsense— they probably paid for horses and ale.

Not every old coin tells a grand tale; this one just got the job done.